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Twins 1.0 (Patreon)

Published:
2024-07-09 20:27:31
Edited:
2025-12-30 08:15:43
Imported:
2026-06
Tags:

Content

06.11.2025 UPDATE: Twins 1.1 Update is released (27th November in Public)! Read more about it HERE.

This mod automatically recognizes identical and fraternal twins among siblings of the same age in the households being played and give them unique features.

Twins status

Only twins with the same gender and which are similar enough will get the Identical Twins status!

In other cases, they will get the Fraternal Twins status.

I didn't make this mod specifically for two twins, so it works correctly even if you have triplets and more!

Special behavior

Some interactions (such as arguing about uniqueness and pretending to be twin) are available only for identical twins. You can find all available interactions in the Twins Pie Menu Category.

However, all types of twins can receive special moodlets while working on school projects together!

Special secrets between twins

Being close enough, twins can share special secrets and get reactions with the 'Share Innermost Thoughts' interaction. It's available if you installed Twins Secrets add-on!

This section of the mod is the largest: it currently has about 30 secrets that are available depending on preferences, character traits, lifestyle, career, and relationships. There's even a special secret for when twins are in love with the same sim x)

The twin's reactions (both positive and negative) also depend on the personality – I tried to make these secrets as close to your sims as possible!

In addition, they will not constantly tell the same thing to each other: firstly, you can tell a secret once every 3-4 days; secondly, already told secrets will not be repeated as long as the circumstances remain the same.

Right now, some secrets are available with Lumpinou's Relationships & Pregnancy Overhaul installed (specifically the M1, M7, and M9 modules). But if you want compatibility with any other mods, by all means tell me!

Iimitations

Keep in mind that even sims-generated monozygotic twins still have differences in genetics – and therefore I couldn't just take two values and compare them, so I added the required percentage of similarity of features and a minimum threshold for appearance to be considered the same.

Also, when life expectancy changes (or auto-aging is turned off), the sims may count the exact age of the sims differently, so auto-assignment won't always work correctly.

Plus, this mod doesn't consider hair, skin or eye colors – these parts of genetics are assigned different way, so it only takes into account face and body sliders. However, it may change in the future.

It may lead to assigning twins status for siblings who are not twins, or missing status for twins.

Cheats

Don't panic! For cases above, or if you want to cast twins, I've added cheats on sims. You can find them in the Twins Pie Menu Category with testingcheats enabled.

For any pair of native siblings (their parents should match) you can add and remove Fraternal Twins status.

Identical status cheats are available only for siblings with the SAME gender!

Plus, you can batch remove twins status via the mailbox:

It's useful if you have many pairs of twins in the save which you'd like to remove.

Check compatibility status HERE

REQUIRED

Lot51 Core Library

For more secrets - Lumpinou's RPO (M1, M7, M9).

CONFLICTS

None

TRANSLATION

Russian translation by me

German translation link by Simmie-Maus

Polish translation link by Ayla88

French translation by Nemesims

INSTALLATION

SCRIPT AND MAIN PACKAGE IS REQUIRED! Put it in the Mods folder no deeper than one subfolder.

If you want Secrets' add-on, put the package in the Mods folder as well.

Script (REQUIRED)

Main package (REQUIRED)

Secrets Add-On

F.A.Q.

No interactions at all?

You didn't install the Lot51 Core Library correctly or you have an outdated version

No specific interactions?

It's only for identical twins but your twins are fraternal

They're not close enough

You should wait to use the interaction again (for twins secrets)

No cheats?

Make sure you enabled testingcheats

You should have appropriate pair of siblings: same parents, same age. FOR IDENTICAL TWINS: SAME GENDER!

No auto assigning?

You didn't install the script correctly

DOWNLOAD

Twins 1.1 Update is released, get it HERE

RECOMMENDED

Higher Identical Twins Chance (Cheat)

Twins: Health Issues (add-on for Healthcare Redux)Enjoy the game! <3

P.S. I can only help if you provide me with the details of any issues you are experiencing. Read THIS before writing a bug report (via the link below, not in the comments section).

Contact me | Buy me a Coffee | Bug Report | Mod Status Sheet

Files

Comments

XnixnBvg

I'VE TALKED ABOUT WANTING THIS OML, THANKS! I was gonna do this exact thing but! YESSS NOW I need a TRIPLET one!

SonozakiSisters

Haha I'm happy you like it! As for triplets, during my tests it works fine with them as well though I didn't mean it lol (since it's a mod about two siblings). But if you have a special request for triplets feel free to share some ideas for me <3

zee

Yes!!! Unfortunately one of my twins is pregnant, and her sister aged up to young adult, since you can't age up when pregnant 😭

SonozakiSisters

Don't worry, if you gonna use Twin Cheats, the only requirement your sims should meet is that they are siblings ;)

zee

that's what I was just thinking, if it doesn't automatically, I can just use the cheat, and hopefully it works 😋 this is a very cool mod, thank you!

ღ Moonlight Shadow ღ

When you install the mod, does it still work for twins in separate households? My sim just moved out of her parent's house leaving her twin brother behind, would they still count?

SonozakiSisters

Yes, it will work! The script runs among siblings from genealogy, not among a household where a sim is currently living. I want this feature since my families with twins also are living separately ;)

SonozakiSisters

Thank you as well! I'm happy that I'm not the only one who likes this mod haha

XnixnBvg

Of course I can help with ideas.

XnixnBvg

Okay let me think, maybe Triplets can (Like Twins) have a little special bond, I think I remember hearing that Twins can speak in their own little languages, and I'd like to see that implemented, alongside that, I believe they can help their siblings if they have a "issue" with another sim, much like the sacred trope of a sibling being bullied by someone else.

SonozakiSisters

That's great! Text me there or on Tumblr once you'll come up with and we can discuss it in details

SonozakiSisters

Oh, that's cool! I'll research the ways I can implement that

XnixnBvg

Whats ur Tumblr?

SonozakiSisters

sonozakisisterssims4 feel free to contact me there! Also if you're ok sharing it, how did you find this mod? Um, I'm at a loss to guess why exactly today and with this mod I have so much activity ;D

XnixnBvg

DEADERPOOLS OFFICIAL SERVER :D

muna permata

Haiii, I cant wait to try this. I was wondering does this mod conflict with realistic pregnancy life by PERSEA? I only have them instead lumpinou's. If I download lumpinou's, will it be conflict with PERSEA's?

SonozakiSisters

Don't worry, this mod doesn't conflict with any mod, including this one ;) That's because it doesn't override game files and just adds a new code

Sword Cats

This sounds really fun! Is it compatible with the latest patch? I'd love to check this mod out

SonozakiSisters

Hi! I suggest you to wait a few days since I'm gonna update the game and check all my mods ❤️

Sword Cats

Thank you so much for the fast reply! I'll patiently wait then :) thank you for your hard work

SonozakiSisters

Thank you as well for the kind words ✨ I also want to update my mods already haha but I have to wait for some important mods update for my game ;)

skye skye

If I don't get the required mods, what'll happen? I did see the first one is possibly required. But is the second one and does this need dlc? Also does this work with kids and up too?

SonozakiSisters

Hi, the first one is absolutely required since my mod doesn't work without it at all. The second one just extends possible secrets between twins - but you can install my mod without RPO. It's also compatible with just Base Game. The mod features apply for kids and up, but relationship bit of twins applies on infant stage

skye skye

Ok thanks, I found your mod through Bing ai. I asked lol, since I've been looking for a mod like this for a while. And a middle name mod to and nickname. I haven't found nay though

skye skye

I have just maybe one or a few ideas 😅. What if you can also set who's born first? Like the first born or second born. Maybe they can have a mean twin or nice twin trait? For each twin. Distant twins if they don't like each other. Also does the crush thing work different for different genders? Then maybe a birthday add on for twins. They can have an option to work together or not if they don't like each other. If they have older or younger siblings, maybe even the other siblings can wish they were a twin or had someone "like them". Or if the twins are older idk. Just ideas lol. 🙃

SonozakiSisters

Thank you for the ideas, it's cool! I'll try to implement it eventually. Regarding the crush feature, it works the same either for same and different genders

yellowflowerevy

Health issues no longer is available? Is something wrong for me? Or is anyone else experiancing this?

SonozakiSisters

You mean Health Issues Add on? It's still in progress that why I don't publish it yet. But it will be released in a couple of days ;)

yellowflowerevy

Thanks so much! Sorry I must have missed that part.

Kirsten Ferguson

Hi I'm trying to find interaction but I can't

SonozakiSisters

Hi, what exactly interactions are you looking for? Sharing innermost thoughts is in Deep Thoughts, argue about uniqueness – in Mean, pretend to be a twin – in Pranks. Cheats are available in Cheat Sim Info category

Kirsten Ferguson

I think the only ones are missing is the first two

SonozakiSisters

It is available not for all twins but with a certain level of friendship. And for the first interaction you should download Secrets package. Pretend to be a twin is available if the interaction target sim knows both twins

jeccikaismymomma

i cant find the twin thing so i can make them twins or the cheat sims4 thing im on laptop

SonozakiSisters

Please check if you've installed all required mods and placed it correctly. If you installed Health Issues Add-On before than reinstall it since I've fixed a string issue. With that completed, select Cheat Sim Info on the sim and select Add identical/fraternal twins status

StSimmy

Hello! Since adding this lovely mod, it has made ALL of my sims with siblings twins (either fraternal or identical). I have a LOT of sims in my game, so it's a bit of a hassle to go around removing all of these statuses. Is there a way to edit the .log doc to remove them? Also, one of my sim's sister died, and I don't seem to have the option to remove the twin status from them. Is there a way to do that?

SonozakiSisters

Hi! I'm glad you like this mod ;) I can add a cheat to make a batch removing of status so you can select multiple sims to remove it. Regarding to dead sims, there is now a filter for non dead sims but your case shows I should remove it. Thanks for the feedback! I'll try to fix it in the next few days

Ayla88

Hello, I have a problem with the "Identical Twins" option. The "Give identical twins status" option is missing from the "Cheat Sim Info" menu in both versions 1.107 and 1.108. Additionally, in version 1.108, I receive a UI exception when the mod automatically recognizes identical twins among siblings of the same age in the households being played. I do not encounter this UI exception in version 1.107. My game version is 1.108.349.1020.

SonozakiSisters

Hello, I'll make a form to submit reports today or tomorrow so attach all information there since I can't say nothing about your case without it. But the cheats definitely should be there if the mod is correctly installed because it's a basic injection

Ayla88

I have the option "Give fraternal twins status" in the "Cheat Sim Info" menu. All other mod options are also working in the game.

SonozakiSisters

That's weird because both cheats added the same way so it should both appear or not. The only exception is that a sim should have same gender sibling to have identical status cheat because different gender twins can be only fraternal

Ayla88

So maybe this is the reason for the UI exception. I created a sister and brother. I will check again for same-gender twins.

SonozakiSisters

No, it can't be. Firstly, the script doesn't involve any UI related things. Secondly, it's just mod logic limits, not by the code. And besides that the script always check gender of both sims. Like, I also have fraternal sims in my game and everything is fine

Ayla88

I checked, and the "Give identical twins status" option is indeed in the "Cheat Sim Info" menu for same-gender twins. However, I still get the UI exception. The BE report indicates that all trait modifications were checked, but none of them were identified as faulty.

SonozakiSisters

So that's not a script error. Send me last exception file once I'll create a form so it will be clearer for me

Ayla88

At this moment, I know that the UI problem does not come from your mod. The same problem is experienced by other people, but they are using completely different mods or not using any mods at all.

SonozakiSisters

Yeah, I also saw info about EA bug that causes UI exception

Victoria Roberts

Hello, I just installed this mod but none of the options are showing up in-game. I've tried the cheat sim info, the mailbox cheat. I can't find any twin options. I have Lot51 core. The mod is only one folder in, so that shouldn't be an issue. I don't know what the problem is.

SonozakiSisters

Hi, please fill the form in the pinned post because I can't say nothing about your case without additional information

SonozakiSisters

But first of all with today's update all interactions are in Twins pie menu category. Please read post carefully

StSimmy

Yay, thank you! I'm excited to try it out!

SonozakiSisters

Hope it will work just as you want :) But contact me if there's an issue ❤️

arachnei

holy forking shirtballs, this looks amazing! my game is broken atm but i'm really looking forward to testing this out once i properly tackle this monster that's become my mods folders. discovering your mods through this post and excited to see your work in game, keep it up ! xx

Victoria Roberts

Nevermind, the problem has resolved itself somehow.

Cassy

don't know if it's just me, but the sim file share says files were last added 04.08.24 not 02.09.24?

SonozakiSisters

Yes, it was added 04.08 but last update was 02.09. You can check it if you click on the specific file

SonozakiSisters

Hope you'll enjoy it :) And good luck to game fixing, I know how exhausting can it be

Cassy

ahh, all it does when i click is auto-download the file from sfs. i was excited to try the twins pie menu but it isn't showing up. i re-downloaded and cleared all my cache, etc. i saw your form ^, is there any specific files you need to look at for that?

SonozakiSisters

Firstly, I need screenshots in game and how the mod and Lot51 Core Library are installed. If there are logs regarding to the mod then send it as well

Cassy

i've had the core library installed bc i use lot51 mods but it got deleted somehow. :| should be good to go now.

SonozakiSisters

Yes, interactions don't appear almost always because of core library missing

FeenSims

Hi, I have an idea to make things even more exciting for certain players, just the way I like it. My Sims are sisters and love each other deeply. But that is incest, so is there a way to block kissing and sex when they realize they are sisters? The two should first be able to talk about whether they want to enter into a relationship as an incest couple. They should also make arrangements beforehand and then keep trying to see whether one or both are ready to enter into a relationship. If so, first allow kissing, so that the two don't jump into bed straight away. To go one step further, more conversations should be held, maybe even go to couples therapy, which came with the In Love Pack. Only then should it be possible for the two to sleep together.

SonozakiSisters

Hi, thank you for express interest for my mod but sorry I'm not comfortable implementing incest related things. Hope you understand. If you come up with another ideas I'll be happy to know!

FeenSims

You are not adding incest since it is present with MCCC. You would be helping with my idea to make an incest relationship much more difficult.

SonozakiSisters

I know it may be allowed in MCCC but it's still uncomfortable for me to implement.

Astro Carter

is there a way to manually add the twins relation bit through cheats or is it just something that gets added?

SonozakiSisters

Yes, that's possible. I described how to do that in the post

EMMA MERRILLS

hi the mod isnt working for me, ive been looking for something like this for ages, as there are no twin/ triplet mods that i can find or traits . ive tried adding the twin traits to my sim sisters, but the option doesnt come up at all

SonozakiSisters

It's in the cheats menu in the special category. However, it works only for siblings. The mod is working, so either you didn't use the cheats or install the mod correctly

EMMA MERRILLS

haha found it, it was in the normal menu when you click on the sim you have selected xx thankyou so much for this

Honey

Is this going to be compatible with the new patch?

Kel102101

Hey, there is still a conflict somewhere! all my checkers are leading to this mod but I love this one so much because I am a twin!

SonozakiSisters

No, there are no conflicts, this mod doesn't override anything. What issue are you facing exactly?

Kel102101

It kicks me back to the main menu

SonozakiSisters

This mod is 100% not a cause, it doesn't have such things in the script that caused this problem on the 1.117 patch. Besides, I'm playing with this mod RN and other players don't face this issue at all. You have something different broken in your Mods folder. Try to check the Lot51 Core Library at first

Kel102101

alrighty I'll keep figuring it out thank you!! 🫶

🎶Kayla Wayla🎶

Hello, I’ve downloaded this mod but none of the options are showing up. I have Arnie’s cheats master mod installed so I don’t know if that moved the category. The mod shows up on the mod list when I check but still nothing no matter how many different pairs of twins I try.

SonozakiSisters

Hi, check if you installed correctly the Lot51 Core Library. Other mods don't affect this one. Besides, make sure you're trying to apply cheats correctly, there are limitations

Lilith Reim

hi, i had this mod for a while now, and i could use it and see it normally. but i had a break from the sims just before the new patch Avanture Awaits got released, and now i don't have any options for the mod in game. I tried it only with this mod, mccc, lot51, and lumpinou's mods, and still no "Twins" pie menu at all, not on sims, nor on the mailbox. not sure what is wrong, and it is installed corectly in my mods folder. been using mods for years.

SonozakiSisters

Hi, get the newest Lot51 Core Library version. This issue is not because of this mod

Lilith Reim

i alr did get the newest public version of the mod, i updated it today on curseforge and even chacked on the original site if it is the same version, and it is 1.36v 7th October last updated. i updated it today, and tried the mod and it isn't showing up in the game at all. i also updated the RPO mod as well, and had only these 3 mods in game and nothing. i know how to use mods, been using the mod for a longer time, and never had the problem till now.

SonozakiSisters

This mod is working absolutely correctly on the newest patch. Make sure you have sims to use the interactions and cheats on

TNTComics

As the father of RL triplets, this sounds cool. Will there be future support for triplets, quadruplets, and quintuplets (some townies in my game had quints!)?

SonozakiSisters

Hi, it works on infants as well. Make sure you have appropriate pair of twins (read the details) and you are trying to apply the cheats on the correct sim. It should be the active one

Ella Kris

heyyy trying to download this and the package link takes me to the script mod instread

SonozakiSisters

Hi, use the redirect link below the DOWNLOAD section, this is an old version

Lydia Clark

So I've got the weirdest glitch. My two identical twins, doesn't show they are twins in the profile. And twin options only show up as an option when they are too uncomfortable to use said options. So in a way it works but it also doesn't please help.

SonozakiSisters

How did you find out they are marked as identical twins? Did you use the mod cheats to remove / add the status?

SonozakiSisters

Also please specify your game version and which mod version you have

Lydia Clark

Well they weren't marked as identical they just look exactly the same lol. I had them before the mod was installed. But the twins bubble will pop up when I look through interactions but only when they are too uncomfortable to do them. I believe I have the 1.2 version mod and the 1.121 version sims.

Lydia Clark

Nevermind it started randomly working lol XD

NoodleSims

Hi! BE is saying this is broken after the most recent patch/update, any idea when it'll be updated? :)

Junie

i ♥ this mod so much! thanks for making it!

SonozakiSisters

Hi, you should update the mod to the version 1.2 if you have the 1.121+ game version. Check the twins update post

lorraine williams

Hi, i’ve been trying to play with this mod, but it is not working. I have the requirements and the twin pie menu is not appearing at all

lorraine williams

Sorry I'm just now seeing where the Main package (REQUIRED) is downloading the Script (REQUIRED) instead of the main package and that's the problem. could the correct link be provided please?

SonozakiSisters

Yes, but you should take the version from the mod update post, there is a link in this one

Niko Pressley

this mod was broken by the patch just wanted to let you know!